Fournoi Korseon, more commonly simplified as Fournoi, anciently known as Corsiae or Korsiai, Corseae or Korseai (Κορσεαί), Corsia or Korsia (Κορσία), and Corassiae (Κορασσίαι), form a complex or archipelago of small Greek islands that lie between Ikaria, Samos and Patmos in Ikaria regional unit, North Aegean region. The two largest islands of the complex, the main isle of Fournoi 31 square kilometres and the isle of Thymaina 10 square kilometres, are inhabited, as is Agios Minas Island 2.3 square kilometres to the east. The municipality has an area of 45.247 km2. On the main isle Fournoi (town) is the largest settlement and then Chrysomilia in the north the second largest. Fournoi (town) proper is the main ferry harbour, with ferries also landing on Thymaina.